US calculator
Foundation Repair Cost Calculator
Estimate US existing-foundation repair costs by affected area, repair method, severity, and foundation type.
How this estimate is calculated
Affected area provides a scalable planning baseline. Repair method materially changes the per-square-foot cost, while severity and foundation type apply calibrated percentage adjustments. Engineering, soil investigation, and permits remain separate fixed allowances to avoid double-counting structural work.
This is a planning estimate, not a contractor quote. Actual contractor quotes vary by location, specification, site conditions, labour, and project requirements.
Useful cost information
Planning assumptions
- This estimates repair of an existing foundation, not new-foundation construction.
- A professional inspection is required to determine the repair method.
- Actual pricing varies with soil, access, structure, location, and contractor scope.
Data sources & methodology
Angi — Foundation Repair Cost 2026; Angi — Underpinning Foundation Cost 2026
Last reviewed: 2026-09
Helpful guides
Foundation Repair Cost Guide: Cracks, Settlement and Structural Repairs
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Foundation Crack Repair vs Major Foundation Repair: Signs, Options and Costs
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Home Addition Cost Guide: Cost per Square Foot, Rooms and Project Scope
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Build Up vs Build Out: Second-Story and Ground-Floor Addition Cost Comparison
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Retaining Wall Cost Guide: Materials, Height, Drainage and Labor
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